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path: root/include/uapi/drm/armada_drm.h
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/*
 * Copyright (C) 2012 Russell King
 *  With inspiration from the i915 driver
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */
#ifndef DRM_ARMADA_IOCTL_H
#define DRM_ARMADA_IOCTL_H

#include "drm.h"

#if defined(__cplusplus)
extern "C" {
#endif

#define DRM_ARMADA_GEM_CREATE		0x00
#define DRM_ARMADA_GEM_MMAP		0x02
#define DRM_ARMADA_GEM_PWRITE		0x03

#define ARMADA_IOCTL(dir, name, str) \
	DRM_##dir(DRM_COMMAND_BASE + DRM_ARMADA_##name, struct drm_armada_##str)

struct drm_armada_gem_create {
	uint32_t handle;
	uint32_t size;
};
#define DRM_IOCTL_ARMADA_GEM_CREATE \
	ARMADA_IOCTL(IOWR, GEM_CREATE, gem_create)

struct drm_armada_gem_mmap {
	uint32_t handle;
	uint32_t pad;
	uint64_t offset;
	uint64_t size;
	uint64_t addr;
};
#define DRM_IOCTL_ARMADA_GEM_MMAP \
	ARMADA_IOCTL(IOWR, GEM_MMAP, gem_mmap)

struct drm_armada_gem_pwrite {
	uint64_t ptr;
	uint32_t handle;
	uint32_t offset;
	uint32_t size;
};
#define DRM_IOCTL_ARMADA_GEM_PWRITE \
	ARMADA_IOCTL(IOW, GEM_PWRITE, gem_pwrite)

#if defined(__cplusplus)
}
#endif

#endif
fore cgroup_name/path() are operational
While refactoring cgroup creation, a5bca2152036 ("cgroup: factor out cgroup_create() out of cgroup_mkdir()") incorrectly onlined subsystems before the new cgroup is associated with it kernfs_node. This is fine for cgroup proper but cgroup_name/path() depend on the associated kernfs_node and if a subsystem makes the new cgroup_subsys_state visible, which they're allowed to after onlining, it can lead to NULL dereference. The current code performs cgroup creation and subsystem onlining in cgroup_create() and cgroup_mkdir() makes the cgroup and subsystems visible afterwards. There's no reason to online the subsystems early and we can simply drop cgroup_apply_control_enable() call from cgroup_create() so that the subsystems are onlined and made visible at the same time. Signed-off-by: Tejun Heo <tj@kernel.org> Reported-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru> Fixes: a5bca2152036 ("cgroup: factor out cgroup_create() out of cgroup_mkdir()") Cc: stable@vger.kernel.org # v4.6+
Diffstat (limited to 'sound/firewire/dice/dice-stream.c')